The answer is a. nuclear fission is breaking up
The plastic rod is made of insulator (plastic), so it does not allow charges moving from one sphere to another. This means that all the electrons given to sphere A will remain on sphere A.
The number of electrons initially given to sphere A is

, and since the charge of 1 electron is

, the net charge left on sphere A after the removal of the rod will be
TRUE: Dermal Papillae project into and anchor the epidermis to the dermis.
The dermal papillae increases the surface area between the epidermis and dermis. It forms dermal ridges in hands, feet, and fingertips. It extends to the epidermis and contains blood vessels that supply epidermis with nutrients.
Aside from dermal papillae, the following are found in the dermis.
1) fibroblasts
2) adipocytes
3) macrophages
4) nerve endings
5) hair follicles
6) smooth muscles
7) glands
8) lymphatic vessels